To find all the divisors of the number 497,760:
- 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 497,760:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
497,760 = 25 × 3 × 5 × 17 × 61
497,760 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 = (5 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 6 × 2 × 2 × 2 × 2 = 96
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 497,760
- 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
prime factor =
3
composite factor = 2
2 =
4
prime factor =
5
composite factor = 2 × 3 =
6
composite factor = 2
3 =
8
composite factor = 2 × 5 =
10
composite factor = 2
2 × 3 =
12
composite factor = 3 × 5 =
15
composite factor = 2
4 =
16
prime factor =
17
composite factor = 2
2 × 5 =
20
composite factor = 2
3 × 3 =
24
composite factor = 2 × 3 × 5 =
30
composite factor = 2
5 =
32
composite factor = 2 × 17 =
34
composite factor = 2
3 × 5 =
40
composite factor = 2
4 × 3 =
48
composite factor = 3 × 17 =
51
composite factor = 2
2 × 3 × 5 =
60
prime factor =
61
composite factor = 2
2 × 17 =
68
composite factor = 2
4 × 5 =
80
composite factor = 5 × 17 =
85
composite factor = 2
5 × 3 =
96
composite factor = 2 × 3 × 17 =
102
composite factor = 2
3 × 3 × 5 =
120
composite factor = 2 × 61 =
122
composite factor = 2
3 × 17 =
136
composite factor = 2
5 × 5 =
160
composite factor = 2 × 5 × 17 =
170
composite factor = 3 × 61 =
183
composite factor = 2
2 × 3 × 17 =
204
composite factor = 2
4 × 3 × 5 =
240
composite factor = 2
2 × 61 =
244
composite factor = 3 × 5 × 17 =
255
composite factor = 2
4 × 17 =
272
composite factor = 5 × 61 =
305
composite factor = 2
2 × 5 × 17 =
340
composite factor = 2 × 3 × 61 =
366
composite factor = 2
3 × 3 × 17 =
408
composite factor = 2
5 × 3 × 5 =
480
composite factor = 2
3 × 61 =
488
composite factor = 2 × 3 × 5 × 17 =
510
composite factor = 2
5 × 17 =
544
composite factor = 2 × 5 × 61 =
610
composite factor = 2
3 × 5 × 17 =
680
This list continues below...
... This list continues from above
composite factor = 2
2 × 3 × 61 =
732
composite factor = 2
4 × 3 × 17 =
816
composite factor = 3 × 5 × 61 =
915
composite factor = 2
4 × 61 =
976
composite factor = 2
2 × 3 × 5 × 17 =
1,020
composite factor = 17 × 61 =
1,037
composite factor = 2
2 × 5 × 61 =
1,220
composite factor = 2
4 × 5 × 17 =
1,360
composite factor = 2
3 × 3 × 61 =
1,464
composite factor = 2
5 × 3 × 17 =
1,632
composite factor = 2 × 3 × 5 × 61 =
1,830
composite factor = 2
5 × 61 =
1,952
composite factor = 2
3 × 3 × 5 × 17 =
2,040
composite factor = 2 × 17 × 61 =
2,074
composite factor = 2
3 × 5 × 61 =
2,440
composite factor = 2
5 × 5 × 17 =
2,720
composite factor = 2
4 × 3 × 61 =
2,928
composite factor = 3 × 17 × 61 =
3,111
composite factor = 2
2 × 3 × 5 × 61 =
3,660
composite factor = 2
4 × 3 × 5 × 17 =
4,080
composite factor = 2
2 × 17 × 61 =
4,148
composite factor = 2
4 × 5 × 61 =
4,880
composite factor = 5 × 17 × 61 =
5,185
composite factor = 2
5 × 3 × 61 =
5,856
composite factor = 2 × 3 × 17 × 61 =
6,222
composite factor = 2
3 × 3 × 5 × 61 =
7,320
composite factor = 2
5 × 3 × 5 × 17 =
8,160
composite factor = 2
3 × 17 × 61 =
8,296
composite factor = 2
5 × 5 × 61 =
9,760
composite factor = 2 × 5 × 17 × 61 =
10,370
composite factor = 2
2 × 3 × 17 × 61 =
12,444
composite factor = 2
4 × 3 × 5 × 61 =
14,640
composite factor = 3 × 5 × 17 × 61 =
15,555
composite factor = 2
4 × 17 × 61 =
16,592
composite factor = 2
2 × 5 × 17 × 61 =
20,740
composite factor = 2
3 × 3 × 17 × 61 =
24,888
composite factor = 2
5 × 3 × 5 × 61 =
29,280
composite factor = 2 × 3 × 5 × 17 × 61 =
31,110
composite factor = 2
5 × 17 × 61 =
33,184
composite factor = 2
3 × 5 × 17 × 61 =
41,480
composite factor = 2
4 × 3 × 17 × 61 =
49,776
composite factor = 2
2 × 3 × 5 × 17 × 61 =
62,220
composite factor = 2
4 × 5 × 17 × 61 =
82,960
composite factor = 2
5 × 3 × 17 × 61 =
99,552
composite factor = 2
3 × 3 × 5 × 17 × 61 =
124,440
composite factor = 2
5 × 5 × 17 × 61 =
165,920
composite factor = 2
4 × 3 × 5 × 17 × 61 =
248,880
composite factor = 2
5 × 3 × 5 × 17 × 61 =
497,760
96 factors (divisors)
What times what is 497,760?
What number multiplied by what number equals 497,760?
All the combinations of any two natural numbers whose product equals 497,760.
1 × 497,760 = 497,760
2 × 248,880 = 497,760
3 × 165,920 = 497,760
4 × 124,440 = 497,760
5 × 99,552 = 497,760
6 × 82,960 = 497,760
8 × 62,220 = 497,760
10 × 49,776 = 497,760
12 × 41,480 = 497,760
15 × 33,184 = 497,760
16 × 31,110 = 497,760
17 × 29,280 = 497,760
20 × 24,888 = 497,760
24 × 20,740 = 497,760
30 × 16,592 = 497,760
32 × 15,555 = 497,760
34 × 14,640 = 497,760
40 × 12,444 = 497,760
48 × 10,370 = 497,760
51 × 9,760 = 497,760
60 × 8,296 = 497,760
61 × 8,160 = 497,760
68 × 7,320 = 497,760
80 × 6,222 = 497,760
85 × 5,856 = 497,760
96 × 5,185 = 497,760
102 × 4,880 = 497,760
120 × 4,148 = 497,760
122 × 4,080 = 497,760
136 × 3,660 = 497,760
160 × 3,111 = 497,760
170 × 2,928 = 497,760
183 × 2,720 = 497,760
204 × 2,440 = 497,760
240 × 2,074 = 497,760
244 × 2,040 = 497,760
255 × 1,952 = 497,760
272 × 1,830 = 497,760
305 × 1,632 = 497,760
340 × 1,464 = 497,760
366 × 1,360 = 497,760
408 × 1,220 = 497,760
480 × 1,037 = 497,760
488 × 1,020 = 497,760
510 × 976 = 497,760
544 × 915 = 497,760
610 × 816 = 497,760
680 × 732 = 497,760
48 unique multiplications The final answer:
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