It is a composite.
composite
No, it is neither prime nor composite.
The Prime Factors of 441 are 3, 7
no, 21*21=441
No, prime numbers refer to whole numbers, not decimals.
441 = 3 * 3 * 7 * 7
It is: 3*3*7*7 = 441
32 x 72 = 441
3x3x7x7
The factors of 441 are: 1 3 7 9 21 49 63 147 441 The prime factors are: 3, 7
1.7 is neither because it must b a whole number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.
3*3*7*7 = 441
32 x 72 = 441