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Q: What is largest prime number under 10000000?

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The largest prime under 20 is 19.

Prime numbers can't have whole number square roots, of course, but the largest prime number under 400 is 397.

997

because it has no other denominators beside 1 and itself

A prime number can be less than 20, but it is not a requirement that the number has to be under 20 to be considered prime. Here is a list of all the prime numbers under 20: 2, 3, 5, 7, 11, 13, 17, and 19 .

Related questions

97 is the largest prime number under 100

The largest prime number under 200 is 199.

the largest prime number under 100 is 97

The largest prime under 20 is 19.

The prime factors of 100 are 2 and 5; the largest of these is 5. The largest prime number under 100 is 97.

19

293

743

Prime numbers can't have whole number square roots, of course, but the largest prime number under 400 is 397.

997

because it has no other denominators beside 1 and itself

91,97 are the two large prime numbers below 100.