Q: Is 138,720 a Composite Number?
A: Yes, 138,720 is a composite number.
The number 138,720 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 32 34 40 48 51 60 68 80 85 96 102 120 136 160 170 204 240 255 272 289 340 408 480 510 544 578 680 816 867 1,020 1,156 1,360 1,445 1,632 1,734 2,040 2,312 2,720 2,890 3,468 4,080 4,335 4,624 5,780 6,936 8,160 8,670 9,248 11,560 13,872 17,340 23,120 27,744 34,680 46,240 69,360 and 138,720, with no remainder.
Since 138,720 cannot be divided by just 1 and 138,720, it is a composite number.