To find all the divisors of the number 224,960:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 224,960:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
224,960 = 26 × 5 × 19 × 37
224,960 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (6 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 7 × 2 × 2 × 2 = 56
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 224,960
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
2
composite factor = 2
2 =
4
prime factor =
5
composite factor = 2
3 =
8
composite factor = 2 × 5 =
10
composite factor = 2
4 =
16
prime factor =
19
composite factor = 2
2 × 5 =
20
composite factor = 2
5 =
32
prime factor =
37
composite factor = 2 × 19 =
38
composite factor = 2
3 × 5 =
40
composite factor = 2
6 =
64
composite factor = 2 × 37 =
74
composite factor = 2
2 × 19 =
76
composite factor = 2
4 × 5 =
80
composite factor = 5 × 19 =
95
composite factor = 2
2 × 37 =
148
composite factor = 2
3 × 19 =
152
composite factor = 2
5 × 5 =
160
composite factor = 5 × 37 =
185
composite factor = 2 × 5 × 19 =
190
composite factor = 2
3 × 37 =
296
composite factor = 2
4 × 19 =
304
composite factor = 2
6 × 5 =
320
composite factor = 2 × 5 × 37 =
370
composite factor = 2
2 × 5 × 19 =
380
This list continues below...
... This list continues from above
composite factor = 2
4 × 37 =
592
composite factor = 2
5 × 19 =
608
composite factor = 19 × 37 =
703
composite factor = 2
2 × 5 × 37 =
740
composite factor = 2
3 × 5 × 19 =
760
composite factor = 2
5 × 37 =
1,184
composite factor = 2
6 × 19 =
1,216
composite factor = 2 × 19 × 37 =
1,406
composite factor = 2
3 × 5 × 37 =
1,480
composite factor = 2
4 × 5 × 19 =
1,520
composite factor = 2
6 × 37 =
2,368
composite factor = 2
2 × 19 × 37 =
2,812
composite factor = 2
4 × 5 × 37 =
2,960
composite factor = 2
5 × 5 × 19 =
3,040
composite factor = 5 × 19 × 37 =
3,515
composite factor = 2
3 × 19 × 37 =
5,624
composite factor = 2
5 × 5 × 37 =
5,920
composite factor = 2
6 × 5 × 19 =
6,080
composite factor = 2 × 5 × 19 × 37 =
7,030
composite factor = 2
4 × 19 × 37 =
11,248
composite factor = 2
6 × 5 × 37 =
11,840
composite factor = 2
2 × 5 × 19 × 37 =
14,060
composite factor = 2
5 × 19 × 37 =
22,496
composite factor = 2
3 × 5 × 19 × 37 =
28,120
composite factor = 2
6 × 19 × 37 =
44,992
composite factor = 2
4 × 5 × 19 × 37 =
56,240
composite factor = 2
5 × 5 × 19 × 37 =
112,480
composite factor = 2
6 × 5 × 19 × 37 =
224,960
56 factors (divisors)
What times what is 224,960?
What number multiplied by what number equals 224,960?
All the combinations of any two natural numbers whose product equals 224,960.
1 × 224,960 = 224,960
2 × 112,480 = 224,960
4 × 56,240 = 224,960
5 × 44,992 = 224,960
8 × 28,120 = 224,960
10 × 22,496 = 224,960
16 × 14,060 = 224,960
19 × 11,840 = 224,960
20 × 11,248 = 224,960
32 × 7,030 = 224,960
37 × 6,080 = 224,960
38 × 5,920 = 224,960
40 × 5,624 = 224,960
64 × 3,515 = 224,960
74 × 3,040 = 224,960
76 × 2,960 = 224,960
80 × 2,812 = 224,960
95 × 2,368 = 224,960
148 × 1,520 = 224,960
152 × 1,480 = 224,960
160 × 1,406 = 224,960
185 × 1,216 = 224,960
190 × 1,184 = 224,960
296 × 760 = 224,960
304 × 740 = 224,960
320 × 703 = 224,960
370 × 608 = 224,960
380 × 592 = 224,960
28 unique multiplications The final answer:
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