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Q: What two composite numbers whose prime factors have a sum of 10?

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X is a variable which can represent any number, both prime and composite. Prime numbers are those whose only factors are themselves and 1. Composite numbers have other factors besides these.

65 and 77

65 and 77

323, 578 and 5929

38

No, because a prime number that has only two factors, 1(which is niether prime nor composite) and itself(prime).

Yes

If an odd number has more than two factors then it is a composite number but if it has only two factors then it is a prime number. Although all prime numbers are odd except for 2 many more odd numbers are composite numbers having more than two factors as for example 21 is an odd number whose factors are 1, 3, 7 and 21.

prime numbers

21 and 30 if you're only counting distinct factors. Add 25 and 32 if you're not.

29 = 512 36 = 729 26*32 = 576

A composite number is a number that has factors other than 1 and itself. Assuming that you are not including the numbers 25 and 35. Prime numbers are numbers whose only factors are itself and one, so if you find the prime factors of each number: 26 factors to 2, 13 27 factors to 3,3,3 28 factors to 2,2,7 29 prime 30 factors to 2, 3, 5 31 prime 32 factors to 2,2,2,2,2 33 factors to 3, 11 34 factors to 2, 17.

43 is a prime number whose only factors are itself and one

It is composite, as are all whole numbers whose last digits are even.

65, 77

81=9^29+9=1877=7*117+11=18

2 composite numbers whose prime factorization have a sum of 10 are 30 (2+3+5=10) and 21 (3+7=10).

Prime numbers only have one prime factor. The factors of 11 are 1 and 11 but only 11 is considered prime. One is the other factor and it is neither prime nor composite. The only prime number with a prime factor that totals 11 is 11.

30 and 90 are two of many numbers whose prime factors include 2, 3, and 5.

30 is composite. A composite number is simply a number that has more factors than 1 and itself. So since 3 times 10 is 30, we can call 30 composite. A prime number is a number whose factors are only 1 times the number, such as 3, 5, 7, 13, and 29.

38

38

30

There is no three digit prime number whose square root is a prime number. Prime numbers have no factors other than 1 and themselves. Any number having a prime number as a square root is a composite number.

Numbers whose factors only include one and themselves are called Prime numbers.