64
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There are an infinite number of integers with "only 7 factors". Any number which is the product of exactly 7 prime numbers.
Factors are whole numbers that divide exactly into a whole number. These numbers have no remainder. Primes, on the other hand, have exactly two factors which are 1 and itself.
64 is the least number having exactly 7 factors: 1, 2, 4, 8, 16, 32, and 64.
5 times 7 times x times y = 35xy 5 and 7 are prime numbers.
Factors are numbers you can multiply together to get another number. 14: 1, 2, 7