To find the number that, when multiplied by 21, equals 100, you would divide 100 by 21. This calculation yields approximately 4.7619. Therefore, the number that, when multiplied by 21, equals 100 is approximately 4.7619.
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0.21 If you want to find what goes into 21 100 times evenly all you have to do is divide 21 by 100.
Then the number is 21 because 3 times 21 = 63
9.54545454....
100
2 21/100 Since 21 can be divided by 3 and 7 (lowest primes), but 100 cannot, then logically, 100 is the lowest common denominator for this, therefore 21/100