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円周率記録

🇮🇳 Rajveer Meena

目隠しで円周率7万桁を暗唱

ラジヴィール・ミーナは2015年3月21日、ヴェールールのVIT大学にてギネス世界記録を樹立し、現在も保持している。

2015年3月21日、ヴェールールのVIT大学のホールで、ラジヴィール・ミーナは目隠しをした状態で円周率を小数点以下7万桁まで暗唱した。ギネス世界記録は、この挑戦を「円周率の暗記(小数点以下の桁数)」における最高記録として認定した。10年経った今もなお記録は破られておらず、毎年「パイの日(Pi Day)」が来るたびに、彼の名前が話題に上る。

RM🇮🇳Rajveer Meena

Rajveer Meena — Geniuses.club editorial portrait

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The record attempt

The date was chosen for its own reasons: 21 March 2015, in the week of Pi Day, at VIT University in Vellore in Tamil Nadu. Meena was blindfolded throughout, which removes the most obvious objection to a recitation record and makes the attempt purely a test of retrieval.

Guinness World Records lists the result under the category "most decimal places of Pi memorised", with 70,000 places to his name. Pi is irrational: its decimal expansion never terminates and never settles into a repeating pattern, so there is no structure to lean on. Each digit has to be stored and produced in order, and a single error ends the attempt.

The student who missed IIT

Meena is from Sawai Madhopur in Rajasthan. The Times of India told his story in February 2016 under a headline that captures the arc better than any summary: he failed to crack the IIT entrance examination, and now helps to shape the country's best minds.

That framing matters in India, where the Joint Entrance Examination is a national filter with a rejection rate that produces hundreds of thousands of disappointed candidates a year. Meena's record was set at the university where he ended up, not at the one he had aimed for, and the achievement travelled further than an IIT admission letter would have.

A second kind of memory feat

Pi is not his only record. He also holds a Limca record for recalling 1,125 random items, a discipline that tests a different skill: not one long sequence rehearsed over years, but a large body of unrelated material committed quickly.

DNA India returned to him in March 2017 in a feature built around pi, and the same month Mic placed him among the small group of people who hold or claim records for memorising the constant. Competitive memorisation attracts sceptics for good reason, and blindfolded, invigilated attempts with an official adjudicator are how the discipline answers them.

Where Rajveer Meena is now

The sources used here run to 2017. They place him at VIT, aged 28 in March 2017, which is the basis for the birth year of about 1989 given on this page; no source used states his date of birth.

What he has done since is not documented in this record. Whether he has attempted a longer recitation, where he works, and whether anyone has formally challenged the 70,000-digit mark are all open questions rather than facts this page will supply.

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Why pi records are contested

Memorising pi sits at an awkward junction between sport and spectacle. The official record requires an adjudicated attempt with independent verification, which is slow, expensive and rare. Claims made outside that process circulate widely and cannot be checked, which is why the published numbers and the largest claimed numbers have often differed.

That is precisely why the Vellore attempt carries weight. It was blindfolded, it was witnessed, and it was recognised by the body that keeps the list. In a field crowded with assertions, Meena's 70,000 digits are on the record.

Age 01989Age 262015Age 272016Age 282017MILESTONES IN ORDERBORN 1989
Rajveer Meena — every milestone on this page, placed by age.
1989
28歳という記述に基づく出生2017年3月のレポートにおける28歳という記述に基づく出生
2015
目隠しで円周率7万桁を暗唱3月21日、ヴェールールのVIT大学にて目隠しで円周率7万桁を暗唱
2016
タイムズ・オブ・インディアが彼を特集タイムズ・オブ・インディアが、IITに落ちたが今や優秀な頭脳を育てる学生として彼を特集
2017
DNAインディアとMicが記録を再考パイの日の時期にDNAインディアとMicが記録を再考
人物国節目年齢 / 記録
Rajveer Meenaインド目隠しで円周率7万桁を暗唱0歳
Peter Imafidonイギリス2008年、双子の妹ポーラと共に…に合格した最年少記録として報告7歳
Andrej Živanovićセルビアジュニア暗算世界選手権タイトル11歳
Faith Odunsiナイジェリア15歳でグローバル・オープン・数学トーナメント優勝15歳
Freddis Reyes Hernándezキューバ2012年メンタリッド大会にて掛け算部門で優勝およびトロフィー獲得...27歳

What is documented — and what is not

✓ Documented

  • He recited 70,000 decimal places of pi blindfolded at VIT University, Vellore, on 21 March 2015
  • Guinness World Records recognised the attempt as the most decimal places of pi memorised
  • He is from Sawai Madhopur in Rajasthan
  • He also holds a Limca record for recalling 1,125 random items

? Unverified, disputed or wrong

  • His date of birth is not published in these sources
  • The duration of the 2015 attempt is not stated in the sources used
  • What he has done since 2017 is not documented here
  • Whether the record has since been challenged is not established in this record

Questions people ask about Rajveer Meena

How many digits of pi did Rajveer Meena recite?

Seventy thousand decimal places, blindfolded, at VIT University in Vellore on 21 March 2015.

How old is Rajveer Meena?

A March 2017 report gave his age as 28, which places his birth year at about 1989. No source used here gives a date of birth.

Does Rajveer Meena still hold the pi record?

Guinness World Records recognised his 70,000 places as the most decimal places of pi memorised. The sources used here do not record a later verified challenge.

How long did the recitation take?

The sources used here do not state the duration of the attempt.

Is Rajveer Meena on Wikipedia?

He has no Wikipedia article.

What is Rajveer Meena's IQ?

No IQ score for him appears in these sources, and geniuses.club does not estimate one.

What else has he memorised?

He holds a Limca record for recalling 1,125 random items.

Quick quiz: how well do you know Meena’s story?

How many decimal places of pi did Rajveer Meena recite?

Where did he set the record?

What made the attempt harder to dispute?

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Sources

  1. Most decimal places of Pi memorised — Guinness World Records, 2015-03-21
  2. With Pi in mind — DNA India, 2017-03-19
  3. Failed to crack IIT, but now helps to 'shape' best minds — Times of India, 2016-02-18
  4. Pi Day 2017: Meet the record-holders for memorizing digits of pi — Mic, 2017-03-14

Checked by the Geniuses.club editorial team. Ages are given as of September 2026.

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