Question

Descompuneti in factori primi urmatoarelor numere : 642, 3.380, 4.410, 19.800, 33.649, 52866, 578.490, 648.900

Answer 1

642=6•100+4•10+2
3380=3•1000+3•100+8•10+0
4410=4•1000+4•100+1•10+0
19800=1•10000+9•1000+8•100+0•10+0
33649=3•10000+3•1000+6•100+4•10+9
52866=5•10000+2•1000+8•100+6•10+6
578=5•100+7•10+8
490=4•100+9•10+0
648=•100+4•10+8
900=9•100+0+0

Answer 2

642=2X3X107
3380=2x2x5x169
4410=2x3x3x5x7x7
19800=2x2x2x3x3x5x5x11
33649=7x4807
52866=2x3x3x3x979
578490=2x3x5x19283
648900=2x2x3x5x3x7x103