I can't explain it. 7 is not a factor of 291.
None. 291 is not divisible by 7 and so you cant have a whole number factor pair with 7
Divide 7 into 291. If the result is an integer, 7 is a factor.
Divide 7 into 291. If the answer is an integer, seven is a factor. It isn't.
Divide 7 into 291. If the answer is an integer, it's a factor.
No - 7 is neither a multiple or factor of 291.
Divide 7 into 291. If the answer is an integer, 7 is a factor.
No.
Divide 7 into 291. If the answer is an integer, it's a factor.
No, the factors of 291 are 1 3 97 291.
There isn't an easy test for 7. You have to divide it. 7 is not a factor of 291.
You know that 7 isn't a factor of 291 because the quotient of 291 and 7 isn't a whole number.