2,5,7,0,中组成三位数奇数有:257,527,207,507,205,705,275,725.
2,5,7,0,中组成三位数偶数有:250,570,520,750,572,752,502,702.
2,5,7,0,中组成三位数2的倍数有:250,570,520,750,572,752,502,702.
2,5,7,0,中组成三位数3的倍数有:570,750,702,207,705,720.
2,5,7,0,中组成三位数5的倍数有:570,750,250,270,520,720,725,275,705.